Method of and means for weighting the slip rolls for laps in textile machines wherein the material acted on is formed into laps



H. WILKINSON ET AL. METHOD OF AND MEANS FOR WEIGHTING THE SLIP ROLLS FOR LAPS IN TEXTILE Feb. 7, 1933.

MACHINES WHEREIN THE MATERIAL ACTED ON IS FORMED INTO LAPS Filed June 5, 1931 Patented Feb. 7, 1933 UNITED, STATES Ps'AT EN -Ti oFFicE HENRY WILKINSON AND ARTHUR Eon, or BABEOWsH W; OEDHAM, ENGLAND, AS-

SIGN OBS OF ONE-THIRD ENGLAND TO PLATT BROTHERS AND COMPANY LIMITED, OLDHAM,

METHOD OF AND MEANS FOR WEIGHTING THE SLIP ROLLS FOR LAIS IN TEXTILE MACHINES WHEREIN THE MATERIAL AoTEn 0N IS FORMED INTO LAZPS .Applicationfiled June 5, 1931, Serial No. 542,232, and in Great Britain August 23, 1930.

These improvements have to do with textile machinery of that class in which the material acted on is formed'into laps on delivery, as for instance, amongst other apparatus, may be mentioned exhaust opener lap-machines, cylinder opener lap machines, scutcher lap machines, but the improvements apply to any textile machine in which a lap is produced.-

'The invention concerns an improved method of and means for weighting the lap, or more strictly for weighting the slip rolls upon which the laps are "wound. V

In the best known type of lap weighting arrangement, the weighting is wholly e1fected by a braking system or friction combination, which includes a. friction wheel anda pivoted loaded lever with foot pedal, the friction combination requiring to impart a very considerable-friction to be effectively operative and to ensure the required yardage in the lap. The friction wheel is compounded with a small pinion on' a sleeve, and this small pinion, through carrier wheels and pinions, actuates a shaft with pinions, which gear with the verticallyarranged loading rack bars. The shaft mentioned, passes freely through the axis of the friction wheeland its compounded pinion, and has fixed upon is requisite in order to permit the operative to work the rack bars to elevate the same when a lap is fully wound, which can only be done when an operative puts his foot on the treadle of the braking lever. Toturn the hand-wheel with the brakinglever on, is almost an impossibility for an operative. If the braking lever be released, the gearing can of course be turned by hand to the req: uisite extent and the braking lever re-engaged. a i

In practice, this brake or friction loading is well known to be unsatisfactory and troublesome and to produce uneven laps, and to cause breakage of slip rolls and racks, as the actuation of'the friction (being necessarily heavily set) can only occur at intervals when the lap is sufiiciently consolidated as to over come the total heavy friction and force the slip roll to lift the heads of the loading it the known hand wheel. This hand-wheel CI racks, whereupon a period of relief is obtained. As a result, laps are never wound under a uniform and definite load, but rather the friction is only overcome at uncertain periods, and then the rack bars lift momen- .55 tarily under thei'mposed strain.

Our improved method hasto do with a 7 system by which laps.'(or rather the slip rolls therefor) can to the extent of about half the load be dead-weighted by constant or add) justable dead weights or other weighting loads, so arranged, that they furnish a uniform weighting to or in connection with the provided vertical rack bars, and so far as they are concerned provide always the same ti, constant and uniform dead weight load which is imposed on the lap-being wound. Further, the method makes requisite the power to heableto mechanically lift up the ,1 rack bars still higher when a lap isfully It wound, and to maintain same in thatzposition, and this we do by the provision of a friction or brake mechanism with lightly loadedfoot treadle of holding capacity to resist the load of'the gear and dead'weighting such fr ction supplyingthe other half of the load, and further we fashion the hand-wheel, the friction wheel and a small pinion as one revolvable group, which, as the lap is wound, is slowly rotated by the lifting of rack bars operating through'a train of'gear, and this revolvable group can be easily turned even a without disengaging the foot-treadle which bears on the friction wheel. I w The means involved are such as will function mechanically according to this improved method. H a

Inorder to further explain theinvention' .we hereafter describe an appropriate-form ofmechanism which operates in'accordance with, the method set forth, and the said mechanism is illustrated in the accompanying drawing, wherein: v

- Fig." 1 is a side elevationshowing the mechanism applied to a lap forming apparatus, only somuch of an actual apparatus being shown as is requisite for a proper explanationof theinventi'on I i i I Fi'gn2 shows afront. view partlyin sec- I tion of Fig. 1 omitting some of the gearing.

7 way.

Fig. 3 is a partialplan View. 7 Fig. 4 shows a developed diagram of the gear,getc., but with certain ofthe. gear, etc.

turned into ahorizontal plane for simplicity V of illustration.

weights 4, which have end projections; to

socket inthe slotted brackets3r The weights 4 are shown as extending between the two slotted brackets,3,'so as to equally load the rack bars 1, 1. If desired, the rack bars 1, 1

may be separately "and equally loaded.

There is a cro'ss-shafto with two rack pinions 6, 6 keyed on it,the pinions engaging the rack teeth on the vertical rack bars 1, 1, and, mounted and keyed on asleeve or support 7 at the operative end of theshaft 5',is a small ispur pinion 8, a friction wheel 9, and a hand wheel'10. "The small spur pinion 8 gears into a larger pinion 11 keyed on the end of an intermediate shaft 12. A further small pinion 13 keyed on the other end, of the intermediate shaft 12 gears withfa large pinion 14 compounded with a small. pinion .15 whichrotates on a-fixed stud 16, the-small pinion '15. actuating-through a carrier wheel 7 17,, one of .the 'pinions 6 onthe rack pinion shaft or cross-shaft 5, the said pinion 6 gear- I ing with the teeth bars 1 V e As a consequence, with the described conon one of "the vertical rack struction and'arrangeme'nt of mechanism,

the same dead weight load. which I is about halfthe total. load is at alltimes on the rack bars 1,1, and the sliprod '(marked 1") has onlyto lift the rack bars 1,1 with attached Weightsv by exerting the same upward pressure, whilst, as the rackbars -lift, they turn through the train of gears, the combined small spur pinion 8, friction wheel 9, and hand wheel 10, such group being uniformly and slowlyflrotated so as to overcome the holding friction which supplies the other half of the total loading.

When the vertical rack bars 1, lrequire to be raised,the operative has only to turn the hand-whee110, which it is found can be done even without-disengaging the lightly weighted treadle lever 18, pivoted at 19 and'having the adjustable weight 20. If the. lightly weighted treadle lever 18 is'disengaged, after 2 rack bars 1, 1 inany position, at any time,

and the dead-weight supplies the other half of the weighting effect. 2

By our. invention, the Weighting ismade definite and constantto any. desired weight load from start to finish, by theuse 'of as-.

certained dead weights, supplying half the loading efi'ect whilst the friction supplies the-other half and so laps can be produced which are perfectly uniform in thickness or evenness. V

The weights can be addedto or deducted from as may be required from time to time,

the drawing showing three weightsof a long bar-like type with notched ends and which sit, one over another, in the brackets 3, but we are not in any way restricted to such a weighting arrangement, as this is capable of I .much variation. 1

The friction block onthe foot-treadle 18 g I is marked 22. I

We claim: V r

1. In a device of the kinddescribed, a pair of vertically extending andver'tically movable rack bars, a slip rod extending between and carried bythe upper parts of said rack bars, weight supporting means on said rack bars below said slip rod, and weights carried by said weight supporting means.

2. In a device of the kind described, aspair ff:-

ofvertically extending and vertically 1nov able rack bars, a slip rod extending between and carried by the upper parts'of said rack bars, weight supporting means on-said rack bars at the bottom ends ofsaid rack bars, and Q: removable weights carried by said weight" supporting means.

3.111 a device of the kind described, a pair of vertically extending and vertically 'movable rack bars, a slip rod extending between and carried by the upper parts of said'rack bars, confronting pockets on'said rack bars open at their tops,and weight bars extending between said rack bars and having their ends received in said pockets.-.

' 4. In a device of the kind described, apair of vertically extending and vertically move able rack bars, a slip rod extending between and carried by the 'upper parts of said rack bars, confronting pockets on said rack bars open at their. tops, and weight bars'extending between said rack bars and having their endsreceived in said pockets, said pockets I being located at the lower ends of said rack bars.

1 In testimony whereof we have signed our names to this specification.

- HENRY WILKINSON, ARTHUR ROE.

removal of a wound lap, and re-insertion of a'slip rod 'r,-the gears allow the dead-weight V loaded rackbars 1, 1 torunslowly'down.

The friction device used by us supplies about half the weighting efl'ect and holds the 

